<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>

</head>
<body>

<div id="app">
   <h1 v-for="item in items">{{item.message}}</h1>
</div>

<!--cdn-->
<script type="text/javascript" src="https://unpkg.com/vue"></script>
<script>
    var vm = new Vue({
        el: "#app",
        data: {
            items: [
                {message: "jackenLeu"},
                {message: "jackenLeu1"},
            ]
        }
    });
</script>
</body>
</html>